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Drug interactions

Bendamustine + Talquetamab

Severity: Moderate

Bendamustine and Talquetamab: moderate interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Talquetamab causes cytokine release syndrome, which can transiently suppress CYP enzymes, including CYP1A2. This may alter bendamustine metabolism and exposure, although the clinical effect is uncertain.

What this interaction means in plain words

Bendamustine and Talquetamab can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Bendamustine belongs to Oncology; Talquetamab belongs to Oncology.

Evidence level: Low

Why it happens

Cytokine-mediated suppression of CYP1A2 during cytokine release may reduce bendamustine metabolism.

What to do

Monitor for bendamustine toxicity, especially myelosuppression, during talquetamab step-up dosing and for up to about two weeks after the first treatment dose and during CRS.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Bendamustine with Talquetamab?

MediHelp rates the interaction as moderate. Bendamustine and Talquetamab can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Talquetamab causes cytokine release syndrome, which can transiently suppress CYP enzymes, including CYP1A2. This may alter bendamustine metabolism and exposure, although the clinical effect is uncertain.

How serious is the interaction between Bendamustine and Talquetamab?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for bendamustine toxicity, especially myelosuppression, during talquetamab step-up dosing and for up to about two weeks after the first treatment dose and during CRS.

What other medicines interact with Bendamustine?

MediHelp also lists interactions of Bendamustine with, for example, Axicabtagene ciloleucel, Brexucabtagene autoleucel, Chlorambucil. The full list is on the Bendamustine page.

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